CVE-2021-27933: Pfsense

Medium severity, CVSS 6.1. EPSS: 26.6% chance of exploitation in the next 30 days.

pfSense 2.5.0 allows XSS via the services_wol_edit.php Description field.

Affected products

• Pfsense Pfsense: version 2.5.0 only

Published 2021-04-28. Last modified 2026-06-17.